From the IIOOC ("inconsistency is our only consistency") department at TSA:
Chicago Tribune:
TSA says it will cut down on 'granny pat-downs'
10:08 a.m. CDT, March 14, 2012
The article indicates that the elderly will be nude-o-scoped twice instead of patted down... a short quote:
... elderly passengers won't have to remove their shoes and light outerwear at airport screening checkpoints, [TSA] officials said.
And instead of automatically being patted down if an alarm sounds, they will be permitted to go through touch-free screening equipment a second time to resolve the issue, officials said.
The policy shift is part of a new TSA focus to put more scrutiny on potentially high-risk passengers, said Kathleen Petrowsky, the TSA federal security director at O'Hare.
O'Hare (ORD) has backscatter nude-o-scopes.